two lines that are coplanar and do not intersect
lines that do not intersect and are not coplanar
two planes that do not intersect
a line that intersects two or more coplanar lines at different points
two angles that are formed by two lines and a transversal and occupy corresponding positions
alternate interior angles
2 angles that are formed by 2 lines and a transversal and that lie between the 2 lines on opposite sides of the transversal
alternate exterior angles
2 angles that are formed by 2 lines and a transversal and that lie outside the 2 lines on opposite sides of the transversal
consecutive interior angles
2 angles that are formed by 2 lines and a transversal and that lie between the 2 lines on the same side of the transversal
a type of proof that uses arrows to show flow of a logical argument statements are connected by arrows to show how each statement comes before it. and each reason is written below the statement it justifies
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